In reply to Christian Tietze.

Religious documents of the 9-13th centuries were never thrown away, and were thus put into a genizah when worn. Usually they'd be copied anew for future use. My reference was a nod to this tradition, but also tongue-in-cheek snark that I'm actively throwing mine away (circular file) on a regular basis. There's also tangential references to the idea of fleeting notes, wastebooks, and double-entry accounting methods hiding in my practice here.